glsl: add field to track if xfb_buffer is an explicit or implicit value

Since any of the xfb_* qualifiers trigger the shader to be in
transform feedback mode we need an extra field to track if
the xfb_buffer on interface members was set explicitly since
xfb_buffer will always have a default value.

Reviewed-by: Dave Airlie <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/compiler/glsl/ast_to_hir.cpp b/src/compiler/glsl/ast_to_hir.cpp
index 673ce8f716f..15001b768cb 100644
--- a/src/compiler/glsl/ast_to_hir.cpp
+++ b/src/compiler/glsl/ast_to_hir.cpp
@@ -6955,6 +6955,8 @@ ast_interface_block::hir(exec_list *instructions,
                earlier_per_vertex->fields.structure[j].patch;
             fields[i].precision =
                earlier_per_vertex->fields.structure[j].precision;
+            fields[i].explicit_xfb_buffer =
+               earlier_per_vertex->fields.structure[j].explicit_xfb_buffer;
          }
       }